Answer:
Jim is 12.87 meters away from the shark.
Step-by-step explanation:
We are given that,
Distance between Jim and Tara = 20 meters.
The angle of depression of the shark from Jim and Tara is 47° and 40° respectively as shown in the figure below.
So, the third angle of the triangle formed is given by,
47° + 40° + ∠S = 180°
i.e. ∠S = 180° - 87°
i.e. ∠S =93°
So, now using the sine ratio formula, we have,
i.e.
i.e.
i.e. x = 12.87 meters
Thus, Jim is 12.87 meters away from the shark.
Answer:
The probability is
Step-by-step explanation:
From the question we are told that
The probability of the television passing the test is p = 0.95
The sample size is n = 10
Generally the comprehensive testing process for all essential functions follows a binomial distribution
i.e
and the probability distribution function for binomial distribution is
Here C stands for combination hence we are going to be making use of the combination function in our calculators
Generally the probability that at least 9 pass the test is mathematically represented as
=>
=>
=>